Tank construction.



' W. GRIESSBR.

TANK CONSTRUCTION.

APPLIUATION FILED MMM, 1911.

T9 T 339mg, Patented Mar. so, 1915.

2r SHEETS-SHEET 1.

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THE MORRIS PETERS C0.. PHOm-LITHG.. WASHINGTDN, D. C.

W. GRIESSER. TANK GONSTRUGTION. APPLICATION FILED MAY 15, 1911. Ll 3399?@ Patented Mar. so, 1915.

2 SHEETS-SHEET 2'.

THE MORRIS PETERS CO. PHDT-U-LITHU.. WASHYMGTUHL D. C,

WILHELM GRIESSER, OF DENVER, COLORADO.

TANK CONSTRUCTION.

Application filed May 15, 1911.

To all whom it may concern:

Be it known that l, lNiLI-IELM Grzmssnr., a citizen of the United States, residing at Deliver, in the county of Denver' and State of Colorado, have invented new and useful lmprovements in Tank Construction, of which the following is a specification.

The present invention has reference to tank construction, and more especially to tanks adapted for use in breweries for storing` beer, which tanks, as is generally understood, are provided with an inner facing of enamel. Heretofore these tanks have been made round, being formed of soecalled rings which 'were bolted together, the construction of the rings. requiring the employment of costly machinery.

rlhis invention comprehends the production of a storage tank whose component parts are constituted by metal sheets of uniform thickness, the sheets having their edges flanged so as to enable them to be bolted or riveted together after the application of the coating of enamel, all joints being located exteriorly of the tank.

The invention further comprehends certain improvements in or relating to the construction of the gas dome and the manhole door with which tanks of the'type specified are ordinarily furnished.

A structural embodiment of the invention is illustrated in the accompanying drawings, whereof- Figure 1 is a transverse, horizontal sectional view of the improved tank taken on the line 1-1 of Fig. 8; Fig. 2 is an enlarged fragmental sectional view illustrating a detail of the corner construction; Fig. 3 is a vertical section taken on the line 3dS of Fig. 1; and Fig. L is an enlarged sectional view illustrative of the gas dome construction.

rThe tanks forming the subject of the present case are preferably built up and constructed upon a supporting foundation of concrete, as shown in said drawings, and they are also preferably provided with a concrete casing constituting an extension of the base or foundation and completely inclosing the tanks. Both foundation and casing may advantageously be reinforced by metal rods or the like which are embedded therein during the construction of the said foundation and casing.

The construction of the foundation is substantially as follows: A layer of suitable Speccation of Letters Patent.

Patented Mar. S, 1915.

Serial No. 627,323.

concrete material 5 of the proper thickness is formed and in this layer is embedded a skeleton rectangular framework constituted by metal bars 6 and 7 arranged at right angles to each other. The surface of the layer is then covered with a layer 8 of insulating material of any preferred type, the insulating material being then covered with a further layer of concrete 9 in which there is likewise embedded a second reinforcing.

framework formed by the metal rods or bars 10 and 11. When the combined structure has been built up to the desired height, the previously constructed tank is mounted thereon.

The tank construction, as already stated, presents the most important features of this case, and the tanks themselves, as will be understood, may have any desired shape, that is to say, they may be either square or round, but preferably the former. ln constructing the tanks, each member thereof may be formed of sheet metal, the sheets being of uniform thickness throughout and having theirvinner surfaces provided with a lining or facing. Where a tank member of multi-part construction is to be employed, the confronting edges of its two sections are formed with lateral flanges whose mutuallyadjacent faces fit flush against each other, the two flanges being then fastened together.

Referring more particuarly to Figs. 1 and 3 of the drawings, there is shown a square tank each of whose members consists of two connected sheets. The sheets 12, 12b, constituting the bottom tank head 12, have their confronting inner longitudinal edges formed with depending fianges 12C, which are bolted or riveted together. To anchor these sheets in the foundation they are also provided with a series of depending headed screws 12d. rThe upper surfaces of said sheets are faced or coated with enamel.

The four sides of the tank 13, 14:, 15 and 16, are in the main of counterpart construction and similar to the member 12 above described. Each of said members comprises a pair of sheets enameled on their inner faces and indicated by the same number as the corresponding main member with the superadded exponents. The opposed ianges on the inner longitudinal edges of the sections of each member are coeXtensive with said edges, project laterally outward and are bolted or riveted together; the lower ends of these flanges rest upon the edges of the J of the top member or head 18.

bottom member 12. The outer longitudinal edge of each section of each of the side members is also formed with a flange indicated by the corresponding number with the exponent e, which projects laterally outward and is disposed at an angle, as shown more particularly in Fig. 2. The arrangement of these angular flanges is such that they will abut directly against each other, as shown in the figure last mentioned, a packing strip -17 being preferably interposed between the adjacent faces thereof. Said flanges are bolted or riveted together in the same manner as the inner flanges already described. Finally, the said sections of each of said members are formed with out-turned lateral flanges at their top and bottom edges which are indicated by the corresponding numerals withthe exponents f and g The bottom flangesl rest upon the adjacent edges of the bottom member 12, while the top flanges support the corresponding edges The construction last mentioned may, however, be slightly vmodified, as shown vin Fig. 4, to the extent of providing the aforesaid top member 1S with marginal upstanding flanges 18f which, in that instance, will fit flush against the upstanding straight edges of the adjacent side members. The four side members and the top member are provided with anchoring studs or screws similar to the studs or screws 12d, already referred to. These studs have their heads embedded in the adjacent walls of the casing, which walls are built up in the same manner as 'the base or foundation after the tank has been set up.

By reason of the above construction, it will be apparent that all joints are located exteriorly of the tank and, hence, the contents of the latter are in no danger of coming in contact with the bolts or rivets. The entire interior of the tank is covered by the enamel coating, and, in consequence, the tank is rendered sanitary to a high degree.

One of the side members of the tank, in the present instance the member 15, is provided with a manhole, the adjacent portion of the corresponding casing wall being cut away or removed to provide access thereto. The manhole construction is preferably as follows: Anopening Vof the proper size is made inthe aforesaid member 15, and the edge 'of this opening is formed with an inwardly-extending lateral flange or collar 19, as shown in Fig. 3. The door 20, designed -to close said opening, is .in like manner formed with a continuous marginal flange 21 vhaving a VU-shaped cross section, the flange let being thus adapted to fit in the space bctween the walls of the said door flange 21. No hinges whatever are employed. Provision is also made in the top wall of the concrete casing for the extension of the gas dome thereinto. The construction of this element is in the main similar to that of the manhole; that is to say, an opening is formed in the top member 18 of the tank and the metal around this opening is turned up to form the annular flange 22 and the lower edge of the side wall of the dome proper 23 is fitted within flange 22, as shown in Fig. l, the said dome wall and flange being then bolted or riveted together.

The usual tank adjuncts, such as the cooling coil and the piping system, are disposed within the tank and its casing in the ordinary or any preferred manner, the tank members being provided with perforations at the proper points into which the pipes open. These adjuncts form on part of the present case and hence require no extended description.

As above stated, the vertical walls of the casing are built up around the tank and over the top thereof, and said walls are internally reinforced and provided with insulating material. At the corners of the walls, the sets of vertical rods 2l are connected by tie-wires 25, which are coiled or looped therearound in the manner shown in Fig. 1.

lVhile the material with which the tank is lined is, in most instances, enamel, under certain circumstances it may be advisable to utilize in lieu thereof thin sheets of copper or aluminum. The term lining, employed in the appended claims, is, therefore, intended to cover both the metal lining and the facing or lining of enamel.

I claim as my invention:

A tank comprising connected top, bottom and side sheet metal members, a concrete casing inclosing said tank, and reinforcing means embedded in said casing consisting of a series of inner and outer frames disposed adjacent the corresponding tank members and composed, each, of intersecting horizontal and vertical bars, the mutuallyadjacent vertical bars at the corners of the casing walls having connecting tie-wires looped therearound.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

VILH ELM GRIESSER.

lVitnesses AMY V. LITTLE, M. E. MCDADE.

Copies of this patent may'be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

